Interphase insulating spacers (RMI) are designed for the isolated fixation of conductors and ground wires in overhead power lines (OPL) with voltages of 10–35 kV. They significantly limit the amplitude of oscillations and ensure the maintenance of necessary insulation distances between conductors of different phases, as well as between conductors and ground wires.

RMI spacers are manufactured according to technical specifications TU 3494-011-82442590-2009. The design and characteristics of the spacers vary depending on the model, including structural length, insulation length, leakage current path length, pollution degree according to GOST 9920, rated mechanical compressive strength, and allowable conductor diameter.

To ensure reliable OPL operation, it is recommended to consider the parameters of a specific RMI model when selecting and installing spacers. This guarantees compliance with operational requirements and safety standards.